3 files changed, 80 insertions, 10 deletions
diff --git a/Timeline/Models/Http/ErrorResponse.cs b/Timeline/Models/Http/ErrorResponse.cs
index 87516638..0d23fe59 100644
--- a/Timeline/Models/Http/ErrorResponse.cs
+++ b/Timeline/Models/Http/ErrorResponse.cs
@@ -1,4 +1,5 @@
-using static Timeline.Resources.Messages;
+
+using static Timeline.Resources.Messages;
 
 namespace Timeline.Models.Http
 {
@@ -241,21 +242,41 @@ namespace Timeline.Models.Http
 
         }
 
-        public static class TimelineController
+        public static class TimelineCommon
         {
 
+            public static CommonResponse NameConflict(params object?[] formatArgs)
+            {
+                return new CommonResponse(ErrorCodes.TimelineCommon.NameConflict, string.Format(TimelineCommon_NameConflict, formatArgs));
+            }
+
+            public static CommonResponse CustomMessage_NameConflict(string message, params object?[] formatArgs)
+            {
+                return new CommonResponse(ErrorCodes.TimelineCommon.NameConflict, string.Format(message, formatArgs));
+            }
+
+            public static CommonResponse NotExist(params object?[] formatArgs)
+            {
+                return new CommonResponse(ErrorCodes.TimelineCommon.NotExist, string.Format(TimelineCommon_NotExist, formatArgs));
+            }
+
+            public static CommonResponse CustomMessage_NotExist(string message, params object?[] formatArgs)
+            {
+                return new CommonResponse(ErrorCodes.TimelineCommon.NotExist, string.Format(message, formatArgs));
+            }
+
             public static CommonResponse MemberPut_NotExist(params object?[] formatArgs)
             {
-                return new CommonResponse(ErrorCodes.TimelineController.MemberPut_NotExist, string.Format(TimelineController_MemberPut_NotExist, formatArgs));
+                return new CommonResponse(ErrorCodes.TimelineCommon.MemberPut_NotExist, string.Format(TimelineCommon_MemberPut_NotExist, formatArgs));
             }
 
             public static CommonResponse CustomMessage_MemberPut_NotExist(string message, params object?[] formatArgs)
             {
-                return new CommonResponse(ErrorCodes.TimelineController.MemberPut_NotExist, string.Format(message, formatArgs));
+                return new CommonResponse(ErrorCodes.TimelineCommon.MemberPut_NotExist, string.Format(message, formatArgs));
             }
 
         }
 
     }
 
-}
-\ No newline at end of file
+}
diff --git a/Timeline/Models/Http/TimelineCommon.cs b/Timeline/Models/Http/TimelineCommon.cs
index febb8186..1cb47dac 100644
--- a/Timeline/Models/Http/TimelineCommon.cs
+++ b/Timeline/Models/Http/TimelineCommon.cs
@@ -1,5 +1,7 @@
-using System;
+using Microsoft.AspNetCore.Mvc;
+using System;
 using System.Collections.Generic;
+using Timeline.Controllers;
 
 namespace Timeline.Models.Http
 {
@@ -28,17 +30,56 @@ namespace Timeline.Models.Http
         public DateTime LastUpdated { get; set; } = default!;
     }
 
-    [System.Diagnostics.CodeAnalysis.SuppressMessage("Usage", "CA2227:Collection properties should be read only", Justification = "This is a DTO class.")]
-    public class BaseTimelineInfo
+    public class TimelineInfo
     {
+        public string? Name { get; set; }
         public string Description { get; set; } = default!;
         public UserInfo Owner { get; set; } = default!;
         public TimelineVisibility Visibility { get; set; }
+#pragma warning disable CA2227 // Collection properties should be read only
         public List<UserInfo> Members { get; set; } = default!;
+#pragma warning restore CA2227 // Collection properties should be read only
+
+#pragma warning disable CA1707 // Identifiers should not contain underscores
+        public TimelineInfoLinks? _links { get; set; }
+#pragma warning restore CA1707 // Identifiers should not contain underscores
     }
 
-    public class TimelineInfo : BaseTimelineInfo
+    public class TimelineInfoLinks
     {
-        public string Name { get; set; } = default!;
+        public string Posts { get; set; } = default!;
+    }
+
+    public static class TimelineInfoExtensions
+    {
+        public static TimelineInfo FillLinksForPersonalTimeline(this TimelineInfo info, IUrlHelper urlHelper)
+        {
+            if (info == null)
+                throw new ArgumentNullException(nameof(info));
+            if (urlHelper == null)
+                throw new ArgumentNullException(nameof(urlHelper));
+
+            info._links = new TimelineInfoLinks
+            {
+                Posts = urlHelper.ActionLink(nameof(PersonalTimelineController.PostListGet), nameof(PersonalTimelineController)[0..^nameof(Controller).Length], new { info.Owner.Username })
+            };
+
+            return info;
+        }
+
+        public static TimelineInfo FillLinksForNormalTimeline(this TimelineInfo info, IUrlHelper urlHelper)
+        {
+            if (info == null)
+                throw new ArgumentNullException(nameof(info));
+            if (urlHelper == null)
+                throw new ArgumentNullException(nameof(urlHelper));
+
+            info._links = new TimelineInfoLinks
+            {
+                Posts = urlHelper.ActionLink(nameof(TimelineController.PostListGet), nameof(TimelineController)[0..^nameof(Controller).Length], new { info.Name })
+            };
+
+            return info;
+        }
     }
 }
diff --git a/Timeline/Models/Http/TimelineController.cs b/Timeline/Models/Http/TimelineController.cs
index f9a4d3e5..6d461bb9 100644
--- a/Timeline/Models/Http/TimelineController.cs
+++ b/Timeline/Models/Http/TimelineController.cs
@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using Timeline.Models.Validation;
 
 namespace Timeline.Models.Http
 {
@@ -11,6 +12,13 @@ namespace Timeline.Models.Http
         public DateTime? Time { get; set; }
     }
 
+    public class TimelineCreateRequest
+    {
+        [Required]
+        [TimelineName]
+        public string Name { get; set; } = default!;
+    }
+
     public class TimelinePatchRequest
     {
         public string? Description { get; set; }